Home / 132,545.54-198,271.56-85,087.64

Finding the Fourth Proportional to 132,545.54, 198,271.56 and 85,087.64

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Solution

The fourth proportional to 132,545.54, 198,271.56 and 85,087.64 is: 127,280.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,545.54 : 198,271.56 = 85,087.64 : x
  2. Step 2: Convert to fraction form
    132,545.54/198,271.56 = 85,087.64/x
  3. Step 3: Cross multiply
    132,545.54x = 198,271.56 × 85,087.64
  4. Step 4: Simplify right side
    132,545.54x = 16,870,459,119.52
  5. Step 5: Solve for x
    x = 16,870,459,119.52/132,545.54
  6. Step 6: Final answer
    x = 127,280.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.